# OpenSpec

> Spec-driven development for AI coding assistants

A lightweight workflow where you and your coding agent agree on a written spec and change proposals before any code is written. Works with most AI coding tools.

- Source: https://github.com/Fission-AI/OpenSpec
- Homepage: https://openspec.dev/
- License: MIT
- Language: TypeScript
- Stars: 70940
- Forks: 4865
- Contributors: 132
- Last commit: 2026-10-02
- Latest release: v1.14.0 (2026-09-30)
- Purpose: AI & LLM tooling, Developer tools, Coding assistants
- Runs on: CLI
- For: Personal, Enterprise

## Worth score: 83/100

How much DigGitHub recommends it, from activity, adoption, docs, license and security signals.

- Popularity: 24/25
- Momentum: 10/20
- Maintenance: 25/25
- Community: 13/15
- Readiness: 11/15

## Alternatives

- [Spec Kit](https://diggithub.com/github/spec-kit.md): Toolkit for spec-driven development with AI agents
- [Repomix](https://diggithub.com/yamadashy/repomix.md): Pack a repository into one AI-friendly file
- [Open Code Review](https://diggithub.com/alibaba/open-code-review.md): Hybrid AI code review tool from Alibaba
- [InsForge](https://diggithub.com/InsForge/InsForge.md): Backend platform for agentic coding
- [Warp](https://diggithub.com/warpdotdev/warp.md): Agentic development environment born from the terminal
- [GitNexus](https://diggithub.com/abhigyanpatwari/GitNexus.md): Zero-server code intelligence engine
- [cmux](https://diggithub.com/manaflow-ai/cmux.md): macOS terminal built for AI coding agents
- [Gemini CLI](https://diggithub.com/google-gemini/gemini-cli.md): Gemini as an agent in your terminal

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Source page: https://diggithub.com/Fission-AI/OpenSpec
Updated: 2026-10-03